<template>
  <div class="app-container">
    讲师列表
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="teacherQuery.name" placeholder="讲师名"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="teacherQuery.level" clearable placeholder="讲师头衔">
          <el-option :value="1" label="高级讲师" />
          <el-option :value="2" label="首席讲师" />
        </el-select>
      </el-form-item>

      <el-form-item label="添加时间">
        <el-date-picker v-model="teacherQuery.begin" type="datetime" placeholder="选择开始时间" value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00" />
      </el-form-item>
      <el-form-item>
        <el-date-picker v-model="teacherQuery.end" type="datetime" placeholder="选择截止时间" value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00" />
      </el-form-item>

      <el-button plain="true" type="primary" icon="el-icon-search" @click="getList()">查询</el-button>
      <el-button plain="true" type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table :data="list" v-loading="listLoading" element-loading-text="数据加载中" border fit highlight-current-row>
      <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column label="名称" prop="name"  width="80" />

      <el-table-column label="头衔" width="80">
        <template slot-scope="scope">
          <!-- ===判断类型和值 -->
          {{ scope.row.level===1?'高级讲师':'首席讲师' }}
        </template>
      </el-table-column>

      <el-table-column label="资历" prop="intro"  />

      <el-table-column label="添加时间" prop="gmtCreate"  width="160" />

      <el-table-column label="排序" prop="sort"  width="60" />

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" plain="true" size="mini" icon="el-icon-edit">修改</el-button>
          </router-link>
          <el-button type="danger" size="mini" plain="true" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination :current-page="page" :page-size="limit" :total="total" style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper" @current-change="getList" />
  </div>
</template>
<script>
import teacher from '@/api/edu/teacher.js'
export default {
    //写核心代码位置
    data(){//定义数据变量和初始值
        return{
            list:null,    //查询后接口返回集合
            page:1,       //当前页
            limit:5,     //每页记录数
            total:0,      //总记录数
            teacherQuery:{}  //条件封装对象
        }
    },
    created(){//页面渲染之前执行
        this.getList()
    },
    methods:{//创建具体方法
        //讲师列表的方法
        getList(page = 1){
            this.page = page
            teacher.getTeacherListPage(this.page,this.limit,this.teacherQuery)
                  .then(response=>{//请求成功
                      //console.log(response)
                      this.list = response.data.rows
                      this.total = response.data.total
                      console.log(this.list)
                      console.log(this.total)
                  }) 
                  .catch(error=>{//请求失败
                      console.log(error)
                  })
        },
        //清空的方法
        resetData(){
            //表单输入项数据清空
            this.teacherQuery={}
            //查询所有讲师的数据
            this.getList()
        },
        //删除讲师的方法
        removeDataById(id){
           this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
              confirmButtonText: '确定',
              cancelButtonText: '取消',
              type: 'warning'
            }).then(() => {     //点击确认执行
              //调用删除的方法
              teacher.deleteTeacherId(id)
              .then(response=>{//删除成功
                //提示信息
                this.$message({
                  type: 'success',
                  message: '删除成功!'
                });
                //回到列表界面
                this.getList()
              })            
            })//点击取消 执行catch (未写)         
            
        }
    }
}
</script>